Ososayensi badale ipulasitiki elilingana nensimbi - eliqinile kodwa alindile.prastics, amakhemikhali kwesinye isikhathi abiza ama-polymers amafushane abizwa ngama-monomers.unlike ama-polymers wangaphambilini wamandla afanayo, impahla entsha kuphela Iza ngefomu le-membrane.Ingiphinde ngama-airtight angama-50 ngaphezulu kunepulasitiki engafinyeleleki kakhulu emakethe.nowTother acticct acticct acpect asmer yale polymer ukulula kwayo kwe-synthesis.the Inqubo, eyenzeka emazingeni okushisa asekamelweni, idinga kuphela izinto ezishibhile, futhi i-polymer ingakhiqizwa ngamashidi amakhulu ama-nanometer kuphela ama-nanometers aminyene.I-2 ebika okutholakele ngoFebhuwari 2.
Izinto ezishiwo kumbuzo zibizwa nge-polyamide, inethiwekhi enomugqa yamayunithi ama-molefanelar (ama-anides angamaqembu amakhemikhali we-nitrogen anamathele kuma-athomu e-carbon) .such afaka uKevlar, i-fiberx, umlilo- Indwangu engamelana ne-.Like Kevlar, ama-molecule e-polyamide ezintweni ezintsha axhunyaniswe komunye nomunye Amabhondi e-Hydrogen kanye nobude obude bamaketanga abo, athuthukisa amandla aphelele ento ethile.
"Banamathela ndawonye njenge-velcro," kusho umlobi we-lead uMichael Strano, izinto zokuzilungiselela ze-MIT Chemical mpashini azidingi ukuphula amaketanga ama-hydrogen ama-hymeate kuphela, kodwa futhi anqobe ama-hymolecular ama-hydrogen ama-hydrogen avela sonke isigaxa se-polymecula.
In addition, the new polymers can automatically form flakes.This makes the material easy to process, as it can be made into thin films or used as a thin-film surface coating.Traditional polymers tend to grow as linear chains, or repeatedly branch and Xhumanisa ngobukhulu obuthathu, kungakhathalekile ukuthi unjani.kodwa ama-polymers akhula ngendlela eyingqayizivele ku-2D ukwakha ama-nanosheets.
"Ungahlanganisa ephepheni? Kuyavela, ezimweni eziningi, awukwazi ukukwenza kuze kube ngumsebenzi wethu, "kusho uStrano." Ngakho-ke, sathola indlela entsha. " Kulomsebenzi wakamuva, iqembu lakhe lahlula inkinga ukwenza lokhu kuhlangana okunezinhlangothi ezimbili.
The reason polyaramides have a planar structure is that polymer synthesis involves a mechanism called autocatalytic templating: as the polymer lengthens and sticks to the monomer building blocks, the growing polymer network induces subsequent monomers to only Combine in the right direction to strengthen the union of the Isakhiwo esingu-Two.Dimensiensional.Umcwaningi bakhombisa ukuthi bangakwazi ukumboza kalula i-polymer kusixazululo ku-wafers ukuze Dala ama-inch-onde ama-laminates angaphansi kwama-nanometers ama-4 aminyene.Lowo cishe owesilisa nowesigidi ephepheni lehhovisi elijwayelekile.
Ukuze unciphise izakhiwo zemishini zezinto ezibonakalayo ze-polymer, abacwaningi balinganisa amandla adingekayo ezimbozweni ezigcinwe eshidini elimisiwe.I-polyamide ngempela ihluke ngaphezu kwe-nylon, indwangu esetshenziselwa ukwenza i-parachites.Rearic, Kuthatha amandla amakhulu aphindwe kabili ukukhombisa leli polyamide elinamandla amakhulu njengensimbi yobukhulu obufanayo.Ackording ku-strano, into ingasetjenziswa Njengokuhlanganisa okuvikelayo ngezindawo zensimbi, ezinjengezihlungi zezimoto, noma njengesihlungi sokuhlanza amanzi.Umsebenzi wokugcina, ulwelwesi olufanele lokuhlunga ludinga ukuba mncane kodwa luqinile ukubekezelela izingcindezi eziphakeme ngaphandle kokugcina Nikeza - ilungele ngokuphelele le nto ye-polyamide.
Esikhathini esizayo, uStrano unethemba lokunweba indlela ye-polymerization kuma-polymers ahlukene ngaphezu kwale Kevlar Analog. "Ama-polmers asizungezile," kushona. " Cabanga nje ezinhlobonhlobo eziningi zama-polymers, ngisho nalezo ezivelele ezingaqhuba ugesi noma ukukhanya, zibe ngamafilimu amancanyana akwazi ukumboza izindawo ezahlukahlukene, mhlawumbe ezinye izinhlobo zama-polymers manje zingasetshenziswa, " Kusho uStano.
Emhlabeni ozungezwe amapulasitiki, umphakathi unesizathu sokuthi ujabule ngelinye i-polymer entsha yalona izakhiwo zemishini kukhona noma yini okujwayelekile, kusho ukuthi ama-aramid ahlala isikhathi eside, okusho ukuthi singakwazi ukufaka indawo yokuhlala nsuku zonke, kusuka kupende kuya ezikhwameni zokupakisha kokudla, Ngezinto ezimbalwa futhi ezinamandla.
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Isikhathi Sokuposa: Meyi-19-2022